I have a Dell Axim (First model PocketPC 2003).I like the performance of the orbiter, but it can not be compared with the FiireChief.

The FiireChief is a lot easier and faster to use in UI2 than the UI1 of the PPC Orbiter.That is because of the combination of the UI, Gyro and lots of direct access buttons.

The PPC Orbiter, uses UI1 and that makes you press a lot more buttons to get things done. It's not slow to follow your actions. So the Orbiter itself feels fast enough.

It has some advantages over the FiireChief, since it can be used with the TV off and still have a UI. Great for music. All album covers and DVD/Movie/Series show up on the Orbiter. When playing a DVD you also get the on screen DVD Menu on the Orbiter.

Especially the use of the orbiter without the TV was a surprise for my visitor. It is very nice to just scroll thru DVDs and CDs to find what one wants to look and after deciding on it, start what ever is necessary with a single click. If I'd have to pick two things I like best about Pluto / LinuxMCE, it would be scrolling thru DVD/CD selection from remote, and Follow Me of the media.